20402243341 has 8 divisors (see below), whose sum is σ = 20439546624. Its totient is φ = 20364969120.

The previous prime is 20402243333. The next prime is 20402243353. The reversal of 20402243341 is 14334220402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20402243341 - 2³ = 20402243333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402244341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1780356 + ... + 1791778.

It is an arithmetic number, because the mean of its divisors is an integer number (2554943328).

Almost surely, 2^20402243341 is an apocalyptic number.

It is an amenable number.

20402243341 is a deficient number, since it is larger than the sum of its proper divisors (37303283).

20402243341 is a wasteful number, since it uses less digits than its factorization.

20402243341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14531.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20402243341 its reverse (14334220402), we get a palindrome (34736463743).

The spelling of 20402243341 in words is "twenty billion, four hundred two million, two hundred forty-three thousand, three hundred forty-one".